Marriott Rewards Card "nights"

I checked my account and noticed I am getting nights towards my Platinum status from the card. Does anyone know how those are figured? I understand the points side, but I am not clear on how much needs to be spent to get a night. I haven't been tracking it closely, so I am not sure when these new nights appeared, but its a fairly significant amount (13). Thanks in advance for any help.

do you know when the nights posts for the ones you earn from spending $3000 ? i got the card a few months ago and have earned 2 nights so far from meeting the $3000 then $6000 point spend. I have now spent over $12k but still have only received 2 nights thus far.

toorad2b4u - I have been trying for several years to make sense of the nights postings, with no real success. They finally get posted, but not as soon as I expect them. I charge almost everything to my Chase Marriott cards - business card and personal card - and while the points are usually posted to my account within 2-3 days of my credit card statement, the night credits come later and don't necessarily correlate with the dollars spent. Like many aspects of the Marriott Rewards process, a clear, verifiable process just isn't available. But eventually the night credits will show up.

As bejacob says, you are entitled to receive one night credit for $3,000 of charges to the card. The points from spending with the card are posted usually within two or three days of your credit card account statement, but the night credits come later, sometimes weeks (or even months) later, with no notification that they have been posted to your Marriott Rewards account. I follow my account closely and have not been able to determine a fixed routine for the posting of these credits. As a mostly leisure traveler, the majority of my points and night credits come from usage of my two Chase Marriott cards